Musical instrument.



No. 820,079. PATENTED MAY 8 P. WUBST, Ja. MUSICAL INSTRUMENT.nrmornonrum) JULY 15. 19 03 FIG I comprisin r bearings for the v" 19fixed re ation with the'veis UNITED STATES PATEXT OFFICE PHILIP woss'r,an, OF PniLAnsnse A;sssnsYLvANIA, ASSIGNOR TO 7 THE AUTO-MANUAL PIANGseries coMPAsY, 0s PHILADELPHIA,

PENNSYLVANIA, A cossossrio s on new JERSEY.

mustang men-autism.

No. 820,079. Specification cf Application filed Elsi Letters stent. 5i;Serial ll'o. 165.550.

IPsttezztI-xi Hey s, 1906 7 seof ng ment and are sutomstieslly setnsteriin e predetermined sequence by a. simiier series of pneumatic motors.Said meters are timerily controlled by a. web of peerst'e Ipsperwhich-is; progressed with assesses e pneumetic tracker-bsr previde witha series of' apertures leading to the respective iever-motors throu hsuitable pneumatic. eeniluits, such centre being effected memes throughindividual valve mechanisms corresponding with the respective motors.

merely them in their respective recessesse'fves is accurately iecstethem in 7 7 prgper relation;

y inventien compress-nee the various novel'festnres of construction andarrangement hereinafter more definitely s ecified.

In the accompanying drawings, i e I is e fragmentary plan view of ennit'vs ve cesing or shelf, several of which m be embodie in aninstrument of the class specified Fig II is a. transverse sectionalviewof said shelf, taken en thze'iine II II in Fi I.

III is e plen w'ew cf s fist blank p ate from which the in: valve-fitt'sstamped to the form 8 own in Fig II. g; V is s sectionel view'of saidblank laite, taken on ex sf one of the valves in r My presentimprovements relate specifictwp cover-board 5, a specin -block'6 of theV ally to the construction and arrangement of 'dlll configuration as theb ock 4 and fixed pistes so as to avoid the necessity fes the relativeadjustment heretofore re'uired as aforesaid. As hereinafter describeseiii individual bearings and seats ese Vprefersbl formed in integralrelation 13311 5 sings sheet-metal stamping, and the assembly of saidsteznpings in 1' relstien in there spective indivi nsr vs vechemhers isfacilitated by having countersunk recesses in the valve-casing for saidstempings, so that i to said board 5, and a removable front coverboerdS. It is to be understood that said individual velveniechsnisms, onlg'one of which is shown, and that each mec snism is provicied with adrephragm-sest 10 in said "setters hoerd l in regist with'e velvessiddiephregm-seets enci in connunnioation I nisesgh the wind pssssge 'eevii with suitable means for maintaining a. partial vacuum in saidchamber'13'. The pnenmsticbeilowsniotor 16 comprises the lever 17 foroperative finest-ion with a. corresponding finger-lever and is mountediupon the button of said heart? 1 'in' communication with the duct 1Q,extending thong ssid'hoerd I, duet-bar 2, and ceverbea} 7 5 into thevalve-chamber 11'. countersunk secesses 22 23 are respectivelyprovidediit tlee top and bottom of said board 5 in re i with saidchamber 11 to receive th e p i 7726, which are secured therein bye 27"28, entered through suitable aper Said plates are revalve-casing shelicomprises at series of the Qehsniher 11 in the top covercard 5 and'thattiie enemies-chamber 13 is eon n efi 'ee 31} of spectivel provided withcentral valve-ports 30 31 an offset bearin -lugs 33 34, in which lugsthe opposite endso the valve-stem 35 are entered and ada ted toreciprocate. Said stem 35 carries two valves 38 39, respectively, inoperative relation to said ports 30 31 and adapted to alternately seatagainst the annular plane portions of said plates 25 26, surroundingsaid ports. Each of said valves 38 39 comprises three pieces arranged asindicated in Fig. VIto wit, a soft-leather facin 42, a pressboard nut43, and a pressboar ring 44. The screwthread 46 of said valvestem 35 iscngaged by both the facing 42 and the nut 43, t e rin 44 serving tostiffen the outer edge of said acing 42, but permitting oscillation ofthe valve to insure its proper contact with its seat. Said stem 35 isconveniently formed of a metal rod primarily of the same diameterthroughout its length; but the thread 46 is formed of larger diameterthan said rod by a rolling operation. The lower end of said stem isconveniently provided with a cut screw-thread 48, upon which is mountedthe nut 49, provided with a softleather or felt facing 50, opposed tothe disk 51 upon the diaphragm 52, which latter is mounted over the seat10 in operative relation to saidvalve-stem 35. As shown in Fig. II, saiddiaphra m-seat 10 is in communication with the in et 54, and the latteris provided with the branch 55, terminating in a small aperture 56,opening into the vacuumchamber 13. -Said inlet 54 being directlyconnected with an aperture in the trackerbar or with another pneumaticvalve which is in operative connection with an aperture in thetracker-bar, the mechanism above described operates as follows: When thetracker bar a erture corresponding with said inlet 54 is c osed by theperforated paper web traversing it, the pneumatic motor 16 is distendedby atmospheric pressure in the po sition shown in Fig. II, beln incommunication with the atmosphere t ough the duct 19 and valve-port 30.When, however, said tracker-bar aperture is opened to the atmosphere,the diaphragm 52 is u lifted by atmospheric pressure admitted t iroughthe inlet 54, op osed to the partial vacuum within the chamiier 13, andthe valve-stem 35 being thereby uplifted closes the valve-port 30 by thevalve 38 and opens the valve-port 31, normally closed b the valve 39,thereby placing the motorellows 16 in communication with the partialvacuum in the chamber 13 through the duct 19, valve-chamber 11, andvalve-port 31, collapsin said bellows 16 and causing the corresponing'finger-lever to im inge upon its res ective digital.

Re erring to Figs. I I and IV, it is to be noted that in the flat blankform the plates 26 each comprise a bearing-lug 33 or 34, whosebearing-aperture 36 or 37 is in such eccentric relation to the plate andthe port or 31 therein that when said lugs are stamped into the offsetposition shown in Fig'. II said apertures are in concentric relation tothe perimeters of said plates.

Referrin to Fig. V, the lug 33 in the plate 25 is provi ed with abushing 60, which may be formed of felt or any other convenientmaterial, frictionally engaged with said lug or cemented or otherwisesecured therein.

It bein noted that the levers 17 on the motor-be] ows 16 are intended toregister with means connecting them with the fin erlevers, I provide tle upper spacing-bloci 6 with a pin 66 and t e lower spacing-block 4 witha soeket-thimble 67, so that the pins and thimbles of each shelf engagewith the thimbles and pins of the adjoinin shelves and insure theaccurate location 0 each of the shelves in its proper relative position.

It is to be understood that the construction and arrangement of thevalve mechanisms as above described not only facilitates the assemhlin gof the parts in proper relation with less labor than has been hithertorequired, but said parts cannot become dislaced accidentally by any useto which an instrument of this class may be subjected, and their removaland replacement in repair work may be accomplished with a minimumexpenditure of time and labor.

' do not desire to limit myself to the precise details of constructionand arrangement herein set forth, as it is to be understood that variousmodifications may be made therein without departing from the essentialfeatures of my invention.

1 claim- 1. In a piano- )layer, the combination with a pneumaticheliows-motor; of a valve mechanism arranged to control said motor,comprising a metal plate having a plane portion arranged as a valve-seatand an offset portion comprising a bearing for a valve-stem; avalve-stem entered in said bearing; and, a valve on. said stem arrangedto seat against said plate, substantially as set forth.

2. In a piano- )layer, the combination with a pneumatic bcliows-motor;of a valve mechanism arranged to control said motor, comprising astamped sheet-metal plate having a portion arranged as a valve-seat andan offset portion arranged as a bearing for a valvestem; a port in saidplate ad'acent to said bearing; a stem entered in sai bearing; and, avalve on said stem arranged to seal; against said plate in operativerelation to said port,

substantially as set forth.

3. In a musical instrument, the combination with a-pneurnatic motor; ofa valve mechanism arranged to control said; motor,

comprising a metal plate having an annular" stem; at waive-stem enteredin said bearing; and, a valve on said stem arranged to conteet with saidseat, substentieil as set forth.

4. in a, piano-player, a plurality of separabio vsive-shelves eachcomprising a series of oneumaticmotors, a series of valve-chamiiers, aseries of individual valve mechanisms, respectively mounted in saidchambers and erran ed to control said motors; and pins and t limbles onsaid shelves adapted to engage each other and insure the accuratelocation of said shelves in relative position, substantially as setforth.

5. In automatic playing mechanism, the

combination with a vaive mechanism comprising a metal pletehaving aplane portion arranged as a valve-seat, and an offset por- ARTHUR E,IEAIGE, E. L FULLERTON.

